کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
154694 456852 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel design method based on flow pattern construction for flow passage with low flow drag and pressure drop
ترجمه فارسی عنوان
یک روش طراحی جدید بر اساس الگوی جریان برای عبور جریان با کشیدن جریان کم و افت فشار
کلمات کلیدی
کاهش جریان و کاهش فشار، حداقل اصل آزاد شدن چسبندگی، مدل رسانه متخلخل حجم مدل مایع دینامیک سیالات محاسباتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• A design method for flow passage is developed based on flow pattern construction.
• Flow pattern construction is considered as a variational problem.
• Virtual volume force is derived as the solution of the variational problem.
• Porous media model and VOF model combine in the construction process of flow pattern.

A novel design method for flow passage with low flow drag and pressure drop was developed based on flow pattern construction. The specific flow pattern with minimum viscous dissipation rate represents low pressure drop in the flow passage. Thus, the fluid flow requires to be optimized as a variational problem subject to the minimum viscous dissipation rate principle, which is also considered as flow pattern construction. By using calculus of variations, the governing equations for the construction of the specific flow pattern were derived from the functional extremum problem represented by the Lagrange multiplier equation. After that, a computational fluid dynamics model was set up and applied in the solution procedure of the governing equations to generate the geometry of the flow passages based on the flow pattern construction. As the illustrative examples to validate the proposed design method, the geometries of flow passages were optimized in terms of pressure drop in a wide range of Re numbers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 135, 2 October 2015, Pages 89–99
نویسندگان
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